Keywords: Roller Rig, Wheel-Rail Contact Mechanics, Rail Vehicle Dynamics, Contact Patch Dynamics, Wheel Forces and Moments
Abstract: A need exists for a new test rig design with advanced sensing technologies that will allow the railroad industry and regulatory agencies to better understand the wheel-rail...
Keywords: Plastic tie, composite tie, tie insertion, tie nipping, bending loads
Abstract: Damage to plastic composite ties during handling and track installation has been reported by a number of railroads. Results from a survey conducted to identify specific handling...
Keywords: Strain levels, joint bar fatigue analysis, residual stress, joint bar strength
Abstract: Detailed analysis of measured bending strains shows that the foundation deflections have the most significant effect on the magnitude of strains. All other factors, such as track...
Guidance Regarding the Application of Vehicle/Track Interaction Safety Standards; High-Speed and High Cant Deficiency Operations; Final Rule: Track Classes 6-9
Keywords: Technical Bulletin T-13-02
Keywords: Heavy axle load, stiffness,
Abstract: Transportation Technology Center (TTCI) conducted vertical track modulus tests on existing plastic composite tie test zones on the High Tonnage Loop (HTL) at the Federal Railroad...